‘A veteran Chinese diplomat who was heavily involved in negotiations to denuclearise North Korea says the region faces its “most dangerous” situation in more than 20 years. Yang Xiyu, who was the founding director of the Chinese foreign ministry’s Korean Peninsula office, said the last time tensions were running this high was in 1994, when the Clinton administration planned a military strike on a small nuclear reactor at Yongbyon in North Korea. “Now the US is once again seriously considering some kind of military strikes on either North Korea’s missile or nuclear facilities,” Mr Yang told the AFR Weekend. ‘